Rotary pump



Dec. 17,` 1929. 4 A A. BERNARD 1,739,661

I ROTARY'PUMP Fild NOV. '7. 1927 ffy.

' Bernard /77 Ven/br Patented Dec. 17, I i

UNITED STATES PATENT *GFFICE l .ll-)ELARD BERNARD, OF DRUMMONDVTLTE, QUEBEC, CNALDA v iatoraal PUMP Application led November 7, 1927. Serial No. 231,456.

The present invention relates to improvesaid cylindrical casing 3, the rotating memments in rotary pumps, and is hereinafter ber 16 carrying at one end thereof the movfully described and claimed, and illustrated able pawl 17, and 18 is another rotating meinin the accompanying'drawingsin whichzFigber suitably mounted on the inner shaft 12,

ure 1 isa vertical lon itudinal sectional view and carrying `the movable pawl' 19. 55 through the casing o a pump of this charac- Each .of said pawls 17 and 19 is rotated by ter. 4 means of a dented wheel 20, which is loosely Figure 2 is a cross section, on line 2-2 ofmounted on the end of the inner shaft 12, and Fi re 1. is provided with a collar 21, which is jourigure 3 is-a cross section, on line 3--3 of nalled in the hub 22 projecting from said 60 li'gure 1. cover 6, and 23 is a sha mounted in said colv The main object of the present invention is lar 21 and suitably keyed thereto, in the end to provide a ump, particularly adapted for of which is secured a pulley-24 which may umping mil and cream, and s o devised that readily be connected to any suitable source 1t will pump Without stirring the milk. Anof power. other object, is to provide a pumpfpf this The pawls 17 and 19 are carried or revolved type, and for the purpose above specified,v by the gear'20, one after the other.- This inwhich will be of very simple construction, termittent motion is obtained by means of a and thus cheapto manufacture, and in which recess 25, located in the bottom of the cylinthere will be few parts, which maybe readily drical casing 3, in which 4the pawl falls, each 70 dismounted for cleaning purposes. in its turn, and is held in said recessy until Like numerals of reference indicate correthe other pawl has partially completed. one spending parts ineach figure. revolution. v v Referring to the drawings, and. particu-y For instance, as the pawl 19 illustrated in 25' larly. Figure lof the drawings, l is a base Figure 2 of the drawings, is carried by the 75 upon which are respectively secured the cydented wheel 20, it strikes the bevelledend lindrical'casings 2 and 3, and 4 and 4 are re- 26 of the fulcrumed lever 27, thus tipping spectively inlet and outlet openings located said lever 27, which in turn pushes the pawl 'in theupper side of casing 2. 5 is a cover for 17 out of the recess 25 and into engagement the casing 2, and 6 is a cover for the casing 3. with one of the dents of the wheel 20. yIn so so .45 cover 5 .at'one end, andat its other end,said the recess 25.

geo .JOn the hollow shaft 10 is mounted, within carried, in the The cover 5 is preferably secured by means of 'actuating the lever'27, the pawl 19 which is the thumb screws 7 so as to be easily removed, still carried by the .wheel 20, engages upon "while the cover 6 is secured bymeans of the curved surface 28, provided upon the lbolts 8.' lever27, and comes in contact with the bev- In the-cylindrical casing 2, is provided a eledl surface of the stationary member 29, e5 hub portion 9, in which is-journalled the holwhlch causes said pawl-19 to be released from low lshaft'lO, which projects at one end into the dented wheel 20, and directs the pawl 19 said cylindrical casing 2, and upon whichis into therecessed vportionl() of the lever 27, securely mounted a pump paddle 11, and 12 so that the pawl 19 wlll abut against the 40 is a shaft loosely mounted within said hollow wall of the recess 25, and will be held in that 9o sha-ft 10,upon one end of which is securely POSltlOn, Unt-11 the .COIIIPRIIOII 13B-Wl 17 611-' mounted another paddle or pum in element gages the bevelledl portion 26 of the ful- 13. The said shaft 12 is prefdraly jourcrumed lever 27, thus causing the" lever 27 nalled in a suitable bearing or recess 14 in the to be tipped, which releases the pawl 19 from shaft extends inwardly intothe casing'3, to- It will be readily understood that when getherwith the hollow shaft 10, and 15 is a the shaft 12 is rotated, the shaft 10 and padsuitable bearing secured in the side of said dle 11 are held from rotation. Thus when 1 casing 3, supporting said hollow shaft 10. the liquid to be (pumped enters the inlet 4, it is rection shown by the arrows 3l, by the' paddle 13, which rotates to force the liquid through the outlet opening 4a. As the paddle 13 nears the outlet opening 4, the pawl 17 -which controlsthe shaft 10, is released and is carried by the dented Wheel 20, simultaneously rotating the paddle A11, which in turn, performs the same operation as the paddle 13.

It will readily be understood from the foregoing, that the device illustrated in the accompanying drawing only shows one ofthe preferred forms of the invention,'but that alterations and amendments, may be made to the said invention, without departing from the scopefand spirit 0f the invention.

l/Vhat I' claim as my invention is:

1. A rotary pump, comprising twocylinj drical casingsrspaced apart, one of said cas.- ing's having inlet and outlet openings therein; al hollow shaft suitably journaled 4in said' casingga paddle mounted on said hollow shaft; y

an inner shaft rotatably mounted wi thin said hollow shaft; a paddle mounted on the end ofl said inner shaft; pawls mounted', respectively, on each of said hollow and said inner y shaft; and a dented wheel to engage alternai l tively eachof said pawls,said dented wheel loosely mounted on'inner shaft; substantially and for the purpose specified.

2. A pump of the character described, comprising sa easing, .inlet and outlet openings therein; a'removable cover for one end of said casing; a'- hollow shaft extending into said ycasing and having its outer end journaled in saidv removable cover; an inner shaft rotatably niounted'within said hollow shaft gpaddles mounted on said hollow and inner shafts,

a pawl mounted on veach of said shafts, and

means forrotating said shafts intermittentt ly, said means comprising-a dented Wheel and a fulcrumed lever, substantially as described. 3. A rotary pump comprising two substantial cylindrical casings'; a hollow shaft jourt naled-in said casings; an inner shaft rotatably mounted within said hollow shaft; paddles repectively mounted on each of said hol- 1 -low and inner shafts; pawls respectfully4 `mounted on said hollow and inner shafts; a

dented. wheel mounted on said inner shaft; and a recess 1n the walls of one of said aforementloned ,casings and a fulcrumed lever mounted in said recess, substantially and for `22nd day of January, 1927.

the purpose s eciiied.

. Signed at ADELARD BERNARD.

ontreal, Quebec, Canada, this 

